1719. ------. [INTERNATIONAL HYDROCARBON SYNTHESIS CO.] [Synthesis of Hydrocarbons With More Than One Carbon Atom From Carbon Monoxide and Hydrogen.] Netherlands Patent 60,321, Dec. 15, 1947. Chem. Abs., vol. 42, 1948, p. 1724.

Velocity of the gases over the catalyst had to be increased to raise production. In a reaction vessel a catalyst containing 46% Co, 8% ThO₂, and 46% diatomaceous earth is used in tubes of 15 mm. diameter, cooled by H₂O. A gas of 85 vol. CO and H₂ and 15 vol. inert gases is led through the catalyst at linear velocity of 0.56 m. per sec. at 195° and normal pressure. Space velocity is 400, and its proportion to the vessel’s height is 80. Under these conditions 1,500 kgm. hydrocarbons, solid, liquid, and gaseous, of more than 1 C atom are obtained per m.³ catalyst per day. The liquid yield (48%) was a gasoline fraction b. under 155° , having an octane value of 60. In comparison with a vessel 2 m. high, with the same catalyst vol. in similar tubes and a space velocity of 100 with linear velocity 0.056 m. per sec. at a temperature 185° and normal pressure, only 200 kg. hydrocarbons were obtained. 35% of the liquid boiled under 155° and had an octane value of 45.